Kubernetes - Labels and Selectors
Which of the following is the correct syntax for selecting pods with label 'app' in either 'web' or 'api'?
Which of the following is the correct syntax for selecting pods with label 'app' in either 'web' or 'api'?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand set-based selector syntax
The correct syntax for selecting labels with values in a set iskey in (value1, value2).Step 2: Validate options
app in (web, api) uses correct syntax. The other options are invalid or incorrect Kubernetes label selector syntax.Final Answer:
app in (web, api) -> Option AQuick Check:
Set-based selector uses 'in' with parentheses [OK]
Quick Trick: Use 'in (val1, val2)' for set-based label selection [OK]
Common Mistakes:
- Using '=' instead of 'in'
- Omitting parentheses
- Using logical operators like '||' which are invalid
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